Comparison

Nuki Smart Lock vs BDayMap

Price, ratings, monetisation and update history for both apps, side by side — with what reviewers say about each.

Head to head
About

Nuki Smart Lock

Transform your smartphone into a secure digital key for your home. Grant and manage access for family and friends, and monitor who enters and when. Enjoy convenient features like automatic unlocking and locking, with easy DIY installation and smart home integration.

Highlights
  • Turn phone into a key
  • Share access permissions
  • Activity log
  • Auto Unlock/Lock
  • Night Mode
  • Smart Home integration
  • DIY installation
Features
Read full description

Turn your iPhone into a key – with Nuki Nuki: The retrofittable, smart door lock. Innovated in Austria – manufactured in Europe. APP REPLACES KEYS Turn your smart devices into keys. With the free Nuki app, you can open your door with your iPhone or your Apple Watch. Open the door with just one click, even remotely. SHARING KEYS Share access permissions with the Nuki app. Simple and secure. You decide who has access. With the activity log you always know who unlocked your door and when. SMART FEATURES Auto Unlock: Your door opens automatically when you come home. Auto Lock: Automatic locking, form maximum security. Night Mode: Activate various safety features during the night. Customize the night mode to your needs. SMART HOME INTEGRATIONS Easy and fast integration into your existing Smart Home. Thanks to Matter Nuki Smart Locks are compatible with most Smart Home systems. Matter ensures an easy and fast integration. EASY DIY INSTALLATION You can install the Nuki Smart Lock yourself within a few minutes. The Nuki app supports you with a step-by-step guide. See if Nuki is compatible with your door here: www.nuki.io/check SMART ACCESSOIRES The Nuki ecosystem offers you a variety of accessoires. Open fast via fingerprint or entry code with the Nuki Keypad 2 or simple and easy via button with the Nuki Fob. No smartphone needed. Get your Smart Lock now directly in our online shop: https://shop.nuki.io/ We’d love to hear from you. If you have questions about Nuki products please contact us at contact@nuki.io, or visit us on social media.

About

BDayMap

Features
Read full description

BDayMap keeps birthdays and reminds you in time. Add your own birthday as day and month only. Add other people with a name, photo, and date. The year is optional. For each person you set reminders: on the day, one day before, three days before, one week before, or a custom number of days, each with a time. The Birthday widget shows one chosen person and a color on the Home Screen. The Upcoming birthdays widget shows the next four. A tap opens the app. The Apple Watch shows the same list, with your own birthday and no photo at the top. iCloud sync is off and stays optional. When you turn it on, birthdays, photos, and reminders stay the same across devices with the same Apple ID. The app has no account of its own. On the Mac you can import birthdays from Contacts, only for contacts that already have a birthday. Name, date, and photo stay on the device. No ads. No purchases. No location. No map.

Screenshots

Nuki Smart Lock4 screens
BDayMap3 screens

Verdict

The call

The clearest difference is update cadence: BDayMap at every 2 days against Nuki Smart Lock's every 3 weeks. BDayMap also leads on device support (4 vs 2). Nuki Smart Lock's advantage is iOS requirement (16.0 vs 18.0). On price, ads and in-app purchases there is nothing between them.

Scored on Price · Rating · Positive reviews · Number of ratings · Update frequency · Ads · In-app purchases · Monetization · Best chart rank · Devices · Requires iOS

CostPrice · In-app purchases · Ads · Monetization

Both are free to download. Neither carries in-app purchases, so what you see is what you pay.

UpkeepUpdate frequency

Nuki Smart Lock ships an update every 3 weeks, BDayMap every 2 days. The most recent releases landed on October 23, 2026 and October 15, 2026 respectively.

Scorecard3 real differences · 7 level
Nuki Smart Lock versus BDayMap: the parameters behind the verdict, then further details
ParameterNuki Smart LockBDayMap
PriceFreeFree
Rating4.7 (515 ratings) — better—
Positive reviews90.2% of reviews—
Number of ratings515 — better—
Update frequencyEvery 3 weeksEvery 2 days — better
AdsNoNo
In-app purchasesNoNo
MonetizationFree—
DevicesiPhone, Apple WatchiPhone, iPad, Mac, Apple Watch — better
Requires iOS16.0 — better18.0
Further details — not scored
Size298 MB18 MB
Age rating4+4+
DeveloperNuki Home Solutions GmbHGabriel Sgroi

Bugs and requests

Nuki Smart Lock

Reported bugs

3 issues
  • Unreliable geofencing
  • Inconsistent unlock/lock functionality
  • Buggy app updates

Requested features

4 requests
  • Improved battery status monitoring
  • Customizable auto-lock/unlock timers
  • Stronger HomeKit/Alexa integration
  • Ability to create/share access codes

BDayMap

Not enough reviews yet to summarise bugs or requests.

In-app purchases

None

Nuki Smart Lock

No in-app purchases

None

BDayMap

No in-app purchases

Questions

Is Nuki Smart Lock free?
Nuki Smart Lock is free to download, with no in-app purchases.
Is BDayMap free?
BDayMap is free to download, with no in-app purchases.
Do Nuki Smart Lock or BDayMap have ads?
Neither Nuki Smart Lock nor BDayMap shows ads.
Which is updated more often, Nuki Smart Lock or BDayMap?
Nuki Smart Lock ships an update every 3 weeks, and BDayMap every 2 days. Most recently, Nuki Smart Lock was updated on October 23, 2026 and BDayMap on October 15, 2026.

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